Document is current

Article History

Received: 10 June 2018

Accepted: 18 July 2018

First Online: 21 July 2018

Competing interest

: The authors declare that they have no competing interest.

: Ethical approval to conduct this study was obtained from the Uganda National Council of Science and technology. Written informed consent was obtained from the parents.

: Upon approval to conduct study approval, the Uganda National Council of Science and technology as well as parents of the participants consented to publishing this work.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.